Improvement in attaching knobs to spindles



MERRIAM.

Patented July 29,1873

Inventor.

Per y/(M/W/ Wimessesi 0M Mafia if Attorneys.

AM PHOTO'LITHOGRAPHIC co. IV. nossomels Mac as.)

UNITED STATES PATENT OFFICE.

FRANKLIN M. MERRIAM AND JOSEPH B.. MERRIAM, OF WEST MERIDEN,

' CONNECTICUT.

IMPROVEMENT IN ATTACHING KNOBS TO SPINDLES.

Specification forming part of Letters Patent No. 141,285, dated July 29,1873; application filed April 19, 1873.

To all whom it may concern:

Be it known that we, FRANKLIN M. MER- RIAM and JOSEPH B. MERRIAM, ofWest Meriden, in the county of New Haven and State of Connecticut, haveinvented a new and useful Improvement in Door-Knobs, of which thefollowing is a specification:

Figure 1 is a detail sectional view, illustrating our invention. Fig. 2is a cross-section of the same taken through the line iv 00, Fig. 1. 4

Similar letters of reference indicate corresponding parts.

Our invention has for its object to improve the construction ofdoor-knobs, so that they may be more readily adjusted to the door, maybe more securely held, and may be less liable to become loose. Theinvention consists in constructing the rose and combining it with thespindle, neck, socket-nut, sleeve, and washer, as hereinafter described.

A represents the spindle, which is made square, and has one, two, ormore transverse notches or grooves, a, formed upon the side of one endto receive the screw that fastens the neck B of the knob C to saidspindle. D is a cap or thilnble having a square hole formed in its base,and the body of which is made of such a size as to fit upon the innerend of the neck B, and thus prevent the possibility of the screw workingout. Upon the outer end of the square spindle A is cut a screw-thread toreceive the nut E, the outer middle part of which is recessed to adaptit to serve as a cap or socket to receive the neck B of the other knobC. The neck B of the knob C is secured to the spindle A by a screw whichpasses in through a hole in the side of the socket-nut E, so as to lockthe said nut as well as to secure the knob B'C. F is a sleeve slippedupon the socket-nut E to keep the screw from working out. G is the rose,the cavity of which is so formed as to receive within it the socket-nutE and sleeve F. The outer end of the rose G projects inward so as tocover the ends of the said nut E and sleeve F, and fit upon the neck Bof the knob (J. The inner side of the plate of the rose G is recessed tofit upon a washer, H, interposed between the' said rose and the side ofthe door to prevent the door from being chafed by the said rose.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent The rose G, constructed substantially as hereinshown and described, in combination with the spindle A, neck B,socket-nut E, sleeve F, and washer H, as set forth.

FRANKLIN M. MERRIAM.

JOSEPH B. MERRIAM. Witnesses:

' GEORGE W. SMITH,

HIRAM RICHMOND.

